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| ==Origin== | | ==Origin== |
| [https://nordan.daynal.org/wiki/index.php?title=English#ca._1100-1500_.09THE_MIDDLE_ENGLISH_PERIOD Middle English], from Anglo-French ''fader'', from ''fade'' feeble, insipid, from Vulgar Latin ''fatidus'', alteration of [[Latin]] ''fatuus'' fatuous, insipid | | [https://nordan.daynal.org/wiki/index.php?title=English#ca._1100-1500_.09THE_MIDDLE_ENGLISH_PERIOD Middle English], from Anglo-French ''fader'', from ''fade'' feeble, insipid, from Vulgar Latin ''fatidus'', alteration of [[Latin]] ''fatuus'' fatuous, insipid |
− | *[http://en.wikipedia.org/wiki/14th_century 14th Century] | + | *[https://en.wikipedia.org/wiki/14th_century 14th Century] |
| ==Definitions== | | ==Definitions== |
| *1: to lose freshness, [[strength]], or [[vitality]] : wither <fading flowers> | | *1: to lose freshness, [[strength]], or [[vitality]] : wither <fading flowers> |
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| *7: of a ball or shot : to move in a slight to moderate slice | | *7: of a ball or shot : to move in a slight to moderate slice |
| ==Description== | | ==Description== |
− | In wireless communications, ''fading'' is deviation of the attenuation affecting a [[signal]] over certain propagation [[media]]. The fading may vary with [[time]], geographical [[position]] or [[radio]] [[frequency]], and is often modeled as a [[random]] process. A fading channel is a [[communication]] channel comprising fading. In wireless systems, fading may either be due to [http://en.wikipedia.org/wiki/Multipath_propagation multipath propagation], referred to as multipath induced fading, or due to [http://en.wikipedia.org/wiki/Shadow_fading shadowing] from [[obstacles]] affecting the [http://en.wikipedia.org/wiki/Wave_propagation wave propagation], sometimes referred to as shadow fading. | + | In wireless communications, ''fading'' is deviation of the attenuation affecting a [[signal]] over certain propagation [[media]]. The fading may vary with [[time]], geographical [[position]] or [[radio]] [[frequency]], and is often modeled as a [[random]] process. A fading channel is a [[communication]] channel comprising fading. In wireless systems, fading may either be due to [https://en.wikipedia.org/wiki/Multipath_propagation multipath propagation], referred to as multipath induced fading, or due to [https://en.wikipedia.org/wiki/Shadow_fading shadowing] from [[obstacles]] affecting the [https://en.wikipedia.org/wiki/Wave_propagation wave propagation], sometimes referred to as shadow fading. |
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− | In audio engineering, a ''fade'' is a [[gradual]] increase or decrease in the level of an [[Sound|audio]] signal. The term can also be used for film cinematography or theatre lighting, in much the same way (see [http://en.wikipedia.org/wiki/Fade_(filmmaking) fade (filmmaking]) and [http://en.wikipedia.org/wiki/Fade_(lighting) fade (lighting))]. | + | In audio engineering, a ''fade'' is a [[gradual]] increase or decrease in the level of an [[Sound|audio]] signal. The term can also be used for film cinematography or theatre lighting, in much the same way (see [https://en.wikipedia.org/wiki/Fade_(filmmaking) fade (filmmaking]) and [https://en.wikipedia.org/wiki/Fade_(lighting) fade (lighting))]. |
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| A recorded [[song]] may be gradually reduced to [[silence]] at its end (fade-out), or may gradually increase from silence at the beginning (fade-in). Fading-out can serve as a recording solution for pieces of [[music]] that contain no obvious ending. | | A recorded [[song]] may be gradually reduced to [[silence]] at its end (fade-out), or may gradually increase from silence at the beginning (fade-in). Fading-out can serve as a recording solution for pieces of [[music]] that contain no obvious ending. |
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− | Though [[relatively]] rare, [[songs]] can fade out, then fade back in. Some examples of this are "Helter Skelter" and "[http://en.wikipedia.org/wiki/Strawberry_Fields_Forever Strawberry Fields Forever]" by The Beatles, "Suspicious Minds" by Elvis Presley, and "Thank You" by Led Zeppelin. | + | Though [[relatively]] rare, [[songs]] can fade out, then fade back in. Some examples of this are "Helter Skelter" and "[https://en.wikipedia.org/wiki/Strawberry_Fields_Forever Strawberry Fields Forever]" by The Beatles, "Suspicious Minds" by Elvis Presley, and "Thank You" by Led Zeppelin. |
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| The term fade is also used in multi-speaker audio systems to describe the balancing of power between front and rear channels. | | The term fade is also used in multi-speaker audio systems to describe the balancing of power between front and rear channels. |
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| [[Category: Physics]] | | [[Category: Physics]] |